package de.metas.material.event.commons;

import static de.metas.material.event.MaterialEventUtils.checkIdGreaterThanZero;

import java.math.BigDecimal;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.JsonAutoDetect.Visibility;
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;

import de.metas.util.Check;
import lombok.Builder;
import lombok.NonNull;
import lombok.Value;

/*
 * #%L
 * metasfresh-material-event
 * %%
 * Copyright (C) 2018 metas GmbH
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, either version 2 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program. If not, see
 * <http://www.gnu.org/licenses/gpl-2.0.html>.
 * #L%
 */

@Value
@JsonAutoDetect(fieldVisibility = Visibility.ANY, getterVisibility = Visibility.NONE, isGetterVisibility = Visibility.NONE, setterVisibility = Visibility.NONE)
public class HUDescriptor
{
	ProductDescriptor productDescriptor;
	int huId;

	BigDecimal quantity;
	BigDecimal quantityDelta;

	@JsonCreator
	@Builder(toBuilder = true)
	private HUDescriptor(
			@JsonProperty("productDescriptor") @NonNull final ProductDescriptor productDescriptor,
			@JsonProperty("huId") final int huId,
			@JsonProperty("quantity") @NonNull final BigDecimal quantity,
			@JsonProperty("quantityDelta") @NonNull final BigDecimal quantityDelta)
	{
		this.huId = checkIdGreaterThanZero("huId", huId);
		this.productDescriptor = productDescriptor;

		Check.errorIf(quantity.signum() < 0, "quantity may not be less than zero");
		this.quantity = quantity;

		this.quantityDelta = quantityDelta;
	}
}
